This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 29 |
| 2 | 841 |
| 3 | 10797 |
| 4 | 74599 |
| 5 | 354726 |
| 6 | 1370104 |
| 7 | 4682514 |
| 8 | 14767708 |
| 9 | 43862845 |
| 10 | 124004457 |
| 11 | 335617558 |
| 12 | 872372014 |
| 13 | 2182675327 |
| 14 | 5267049151 |
| 15 | 12280118231 |
| 16 | 27708360959 |
| 17 | 60600014150 |
| 18 | 128659653568 |
| 19 | 265553503693 |
| 20 | 533599565121 |
| 21 | 1045268782162 |